Debezium series: mapping relationship between MySQL database field types and Kafka message field types, processing datetime, timestamp, bigint unsigned, decimal, blob and other special field types

1. Mapping relationship between MySQL database field types and Kafka message field types

Mysql database type	Mysql actual value	Kafka type	Kafka actual value	parameter
tinyint(4)	1	int16	1
tinyint	2	int16	2	</